On Thu, Jun 21, 2012 at 12:03 PM, Marco Foi <
foimarco@xxxxxxxxx> wrote:
> With the explicit intent of both informing the dev community and asking for
> help, I am reporting my activities within the GSoC project.
>
> I decided to add an operation to the eu.udig.tools.merge to allow for
> merging features selected with the core selection tools (suggested by Jody
>
https://jira.codehaus.org/browse/UDIG-1921 ).
>
> The workflow is:
> - the users adds a layer
> - the users selects a number of features of his interest using "Box
> selection" or "Feature selection" core tools
> - the users right-clicks on the layer -> operation -> "Merge selected" (the
> newly added operation!)
> - the selected features are "passed" to the MergeView (available in the
> eu.merge.tools.merge.internal.view): the view that ultimately calls the
> methods to process geometries.
>
> The workflow (should) proceed as before, using the MergeView features to
> eventually remove features and select text attributes of the output merged
> feature.
>
>
> THE PROBLEM
>
> How can a ViewPart be opened in uDig by code? (MergeView extends ViewPart)
> I can retrieve selected features but I found no way to open the view (to use
> its addSourceFeatures() method)
> It seems that since the operation I created is not in the UI-therad (or
> something like that), a pretty basic code line such:
>
> MergeView view = (MergeView) ApplicationGIS.getView(true, MergeView.ID);
>
> fails with a NullPointerException, caused by a Display.getCurrent()
> returning null in a private method down inside ApplicationGIS.
>
> Any hint?
>
> Marco
>
>
